Might be worth contacting the exhaust manufacturers direct as well to check on product fitment for your car. Horsham developments are also listing the Gemini product in addition to Cobra exhausts at the moment, so you may want to contact them for an opinion as well as Torqen and Tarmac Sports.
I plan to get the Gemini for my 2019 m2 Nismo next year so will be contacting all the above before taking the plunge just to be sure.